ATLASSourceLinkSurfaceAccessor.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
  */
#ifndef ATLASSOURCELINKSURFACEACCESSOR_H
#define ATLASSOURCELINKSURFACEACCESSOR_H
 
#include "ATLASSourceLink.h"
#include "DetectorElementToActsGeometryIdMap.h"
#include "SurfaceOfMeasurementUtil.h"
 
 
namespace Acts {
   class TrackingGeometry;
   class Surface;
}
 
namespace ActsTrk {
class IActsToTrkConverterTool;
 
struct ATLASSourceLinkSurfaceAccessor {
  const ActsTrk::IActsToTrkConverterTool *m_converterTool = nullptr;
 
  const Acts::Surface* operator()(const Acts::SourceLink& sourceLink) const;
};
 
class ATLASUncalibSourceLinkSurfaceAccessor {
  const Acts::TrackingGeometry *m_actsTrackingGeometry = nullptr;
  const DetectorElementToActsGeometryIdMap *m_detectorElementToGeometryIdMap = nullptr;
public:
   ATLASUncalibSourceLinkSurfaceAccessor(const Acts::TrackingGeometry &actsTrackingGeometry,
                                         const DetectorElementToActsGeometryIdMap &detectorElementToGeometryIdMap)
      : m_actsTrackingGeometry(&actsTrackingGeometry),
        m_detectorElementToGeometryIdMap(&detectorElementToGeometryIdMap)
   {}
   const Acts::Surface* operator()(const Acts::SourceLink& sourceLink) const;
};
}
 
#include "ActsEventCnv/IActsToTrkConverterTool.h"
 
namespace ActsTrk {
// surface accessor implementation for ATLASUncalibSourceLink i.e. xAOD::UncalibratedMeasurement
inline const Acts::Surface* ATLASUncalibSourceLinkSurfaceAccessor::operator()(const Acts::SourceLink& sourceLink) const {
   const auto atlas_uncalib_source_link = sourceLink.get<ATLASUncalibSourceLink>();
   const xAOD::UncalibratedMeasurement &uncalibMeas = getUncalibratedMeasurement(atlas_uncalib_source_link);
   return ActsTrk::getSurfaceOfMeasurement(*m_actsTrackingGeometry, *m_detectorElementToGeometryIdMap,
                                           uncalibMeas );
 
}
 
// surface accessor implementation for ATLASSourceLink i.e. Trk::MeasurementBase
inline const Acts::Surface* ATLASSourceLinkSurfaceAccessor::operator()(const Acts::SourceLink& sourceLink) const {
   const auto atlas_source_link = sourceLink.get<ATLASSourceLink>();
   return &this->m_converterTool->trkSurfaceToActsSurface( atlas_source_link->associatedSurface() );
}
}
#endif